On 4/10/2012 11:31 AM, McKown, John wrote:
But that made me wonder why the z/Architecture does not specify that the contents of the
AR register associated with the link register in any of the "branch and link"
type instructions: BALR, BASR, BRAS, BRASL, and BASSM will be set to 0?
Anybody have any idea why these type of instructions don't set the AR?
Unnecessary. Instruction fetch is always from the primary address space.
--
Edward E Jaffe
Phoenix Software International, Inc
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